Coal in China(Redirected from Coal power in China)
China is the largest producer and consumer of coal in the world and is the largest user of coal-derived electricity. However, since 2014 coal as a percentage of the energy mix has fallen, declining from 64% in 2015 to 62% in 2016 according to the National Bureau of Statistics.
Domestic coal production has declined even further, dropping 9% year on year in 2016. Further declines in production were announced in July 2016 when the commission in charge of state-owned enterprises, SASAC, ordered companies under its supervision to cut coal mining capacity by 10% in 2 years and by 15% in 5 years.
Despite the cuts to coal production and falling percentage of coal in the energy mix, electricity consumption is expected to grow by 3.6-4 percent over 2016 to 2020 according to the Thirteenth Plan (2016–2020). According to the same five-year plan, coal power capacity will be expanded from 960 GW to under 1,100 GW by the end of 2020 to meet some of the continued growth in electricity demand. Indeed, in the first two months of 2016, China had added 22 GW of capacity, 14 GW of which was coal, according to the China Electricity Council. To curtail the continued rapid construction of coal fired power plants, strong action was taken in April of the same year by the National Energy Administration (NEA), which issued a directive curbing construction in many parts of the country. This was followed up in January 2017 when the NEA canceled a further 103 coal power plants, eliminating 120 gigawatts of future coal-fired capacity, despite the resistance of local authorities mindful of the need to create jobs. The decreasing rate of construction is due to the realization that too many power plants had been built and some existing plants were being used far below capacity.
As of the end of 2014, China had 62 billion tons of anthracite and 52 billion tons of lignite quality coal. China ranks third in the world in terms of total coal reserves behind the United States and Russia. Most coal reserves are located in the north and north-west of the country, which poses a large logistical problem for supplying electricity to the more heavily populated coastal areas. At current levels of production, China has 30 years worth of reserves.
(Billion short tons)
|Coal in China (million metric tonnes)|
|Production||Net import||Net available|
|by IEA, exclude China Hong Kong|
Coal is the main source of energy in China. In 2011 the Chinese coal production was equivalent to 3,576 Mt × 0.522 toe/t × 11.630 MWh/toe = 21,709 TWh. Assuming the same caloric value for the imported coal the net coal energy available would be evaluated as 22,784 TWh. Assuming imported coal equal to domestic one, available coal (IEA) was about 17,000 TWh in 2008 and 22,800 TWh in 2011, with increase of 5,800 TWh in three years. Total renewable energy in China was 3,027 TWh in 2008 and 2,761 TWh in 2005, with increase of 266 TWh in three years. Same period from 2005 to 2008 annual coal use increased 3,341 TWh.
Energy demand in China continues to increase, with electric demand roughly doubled to 2013, The demand for coal in China had increased so fast, demand had exceed production due to factors such as a government crackdown on mines that are unsafe, polluting, or wasteful. Some were shut down for the 2008 Summer Olympics.
On July 6, 2008 in central and northern China, 2.5% of the nation's coal plants (58 units or 14,020 MW of capacity) had to shut down due to coal shortages. This forced local governments to limit electricity consumption and issue blackout warnings. The shortage is somewhat attributed to the closing of small dangerous coal mines.
In 2011, seven Chinese coal mining companies produced 100 million metric tonnes of coal or more. These companies were Shenhua Group, China Coal Group, Shaanxi Coal and Chemical Industry, Shanxi Coking Coal Group, Datong Coal Mine Group, Jizhong Energy, and Shandong Energy. The largest metallurgical coal producer was Shanxi Coking Coal Group.
China's largest open-pit coal mine is located in Haerwusu in the Inner Mongolia Autonomous Region. It started production on 20 October 2008, and is operated by Shenhua Group. Its estimated coal output was forecast at 7 million tonnes in the fourth quarter of 2008. With a designed annual capacity of 20 million tonnes of crude coal, it will operate for approximately 79 years. Its coal reserves total about 1.73 billion tonnes. It is rich in low-sulfur steam coal. Mines in Inner Mongolia are rapidly expanding production, with 637 million tons produced in 2009. Transport of coal from this region to seaports on China's coast has overloaded highways such as China National Highway 110 resulting in chronic traffic jams and delays.
China's coal consumption in 2010 was 3.2 billion metric tonnes per annum. The National Development and Reform Commission, which determines the energy policy of China, aims to keep China's coal consumption below 3.8 billion metric tonnes per annum.
During the first three quarters of 2009 China's coal consumption increased 9% from 2008 to 2.01 billion metric tons.
The consumption of coal is largely in power production, aside from this, there is a lot of industry and manufacturing use along with a comparatively very small amount of domestic use.
|Use||Anthracite||Coking Coal||Other Bituminous|
Coal power is distributed by the State Power Grid Corporation.
China's installed coal-based electrical capacity was 907 GW, or 77% of the total electrical capacity, in 2014. The dominant technology in the country is coal pulverization in lieu of the more advanced and preferred coal gasification. China's move to a more open economy in the 1990s is cited as a reason for this, where the more immediately lucrative pulverization technology was favored by businesses. There are plans in place for an Integrated Gasification Combined Cycle (IGCC) type plant by 2010. Furthermore, less than 15% of plants have desulphurization systems.
In cities the domestic burning of coal is no longer permitted. In rural areas coal is still permitted to be used by Chinese households, commonly burned raw in unvented stoves. This fills houses with high levels of toxic metals leading to bad Indoor Air Quality (IAQ). In addition, people eat food cooked over coal fires which contains toxic substances. Toxic substances from coal burning include arsenic, fluorine, polycyclic aromatic hydrocarbons, and mercury. Health issues are caused which include severe arsenic poisoning, skeletal fluorosis (over 10 million people afflicted in China), esophageal and lung cancers, and selenium poisoning.
In 2007 the use of coal and biomass (collectively referred to as solid fuels) for domestic purposes was nearly ubiquitous in rural households but declining in urban homes. At that time, estimates put the number of premature deaths due to indoor air pollution at 420,000 per year, which is even higher than due to outdoor air pollution, estimated at around 300,000 deaths per year. The specific mechanisms for death cited have been respiratory illnesses, lung cancer, Chronic Obstructive Pulmonary Disease (COPD), weakening of the immune system, and reduction in lung function. Measured pollution levels in homes using solid fuels generally exceeded China's IAQ air quality standards. Technologies exist to improve indoor air quality, notably the installation of a chimney and modernized bioenergy but need more support to make a larger difference.
China became a net importer of coal in 2008. In 2006, its exports exceeded imports by 25.1 million tons, but only by 2 million tons in 2007. This is significantly lower than the 90 million ton net exports in 2001.
In the first quarter of 2015, China's coal imports fell 42% from the previous year, due to a slower economy and tougher air pollution standards.
It is believed that a continued increase in coal power in China may undermine international initiatives to decrease carbon emissions such as the Kyoto Protocol, which called for a decrease of 483 million tons by 2012. In the same time frame, it is expected that coal plants in China will have increased CO2 emissions by 1,926 million tons — over 4 times the proposed reduction.
|CO2 from coal||2,363||2,287||2,339||2,472||2,518||2,731||3,809|
|CO2 from natural gas||47||51||57||64||69||72||83|
|CO2 from petroleum||531||566||636||653||686||737||816|
|Total CO2 from all fossil fuels||2,940||2,905||3,033||3,190||3,273||3,541||4,707|
Efforts to reduce emissionsEdit
Air pollution in China has gotten so bad that a study by the World Bank found that air pollution kills 750,000 people every year in China. Issued in response to record-high levels of air pollution in 2012 and 2013, the State Council’s September 2013 Action Plan for the Prevention and Control of Air Pollution reiterated the need to reduce coal’s share in China’s energy mix to 65% by 2017. Amidst growing public concern, social unrest incidents are growing around the country. For example, in December 2011 the government suspended plans to expand a coal-fired power plant in the city of Haimen after 30,000 local residents staged a violent protest against it, because "the coal-fired power plant was behind a rise in the number of local cancer patients, environmental pollution and a drop in the local fishermen's catch."
In addition to environmental and health costs at home, China's dependence on coal is cause for concern on a global scale. Due in large part to the emissions caused by burning coal, China is now[when?] the number one producer of carbon dioxide, responsible for a full quarter of the world's CO2 output. According to a recent[when?] study, "even if American emissions were to suddenly disappear tomorrow, world emissions would be back at the same level within four years as a result of China’s growth alone." The country has taken steps towards battling climate change by pledging to cut its carbon intensity (the amount of CO2 produced per dollar of economic output) by about 40 per cent by 2020, compared to 2005 levels. Reuters reports that "emissions and coal consumption will continue to rise through the 2020s, even though at a slower rate, barring a major intervention including a shift to cleaner burning gas from coal" - in other words, "meeting the carbon intensity target will require a significant change in trajectory for carbon emissions and coal consumption." To that end, China has announced a plan to invest 2.3 trillion yuan ($376 billion) through 2015 in energy saving and carbon emission-reduction projects.
China's first coal-fired power station employing the integrated gasification combined cycle (IGCC), which is a coal gasification process that turns coal into a gas before burning it, is planned to begin operations in 2009 at Tianjin near Beijing. Developed under a project called GreenGen, this $5.7 bn 650 MW plant will be a joint venture between a group of state-owned enterprises and Peabody Energy. In addition to these coal gasification projects, it is worth noting that on average, China's coal plants work more efficiently than those in the United States, due to their relative youth.
In September 2011, the Chinese government's Ministry of Environmental Protection announced a new emission standard for thermal power plants, for NOx and mercury, and a tightening of SO2 and soot standards. New coal power plants have a set date of the beginning of 2012 and for old power plants by mid-2014. They must also abide by a new limit on mercury by beginning of 2015. It is estimated such measures could bring about a 70% reduction in NOx emissions from power plants.
In 2012, industrial conglomerate China Wanxiang Holdings signed a $1.25 billion deal with American company GreatPoint Energy to build a large-scale plant using GreatPoint's catalytic hydromethanation process of coal gasification. The technology converts coal into natural gas and enables the recovery of contaminants in coal, petroleum coke and biomass as useful byproducts. Most importantly, nearly all of the CO2 produced in the process is captured as a pure stream suitable for sequestration or enhanced oil recovery. The total project will cost an estimated $20 – 25 billion and will supply a trillion cubic feet of natural gas. This represents a massive leap in the scale of domestic production for China, which last year produced only 107 billion cubic feet of natural gas. The deal includes an equity investment of $420 million, the largest ever by a Chinese corporation into a venture-capital-funded U.S. company, according to industry tracker VentureSource.
China is the first country with a single party government structure to take steps towards developing a nationwide Emissions Trading System.
China decided to close the last four coal-fired power and heating plants out of Beijing's municipal area, replacing them with gas-fired stations, in an effort to improve air quality in the capital. The four plants, owned by Huaneng Power International, Datang International Power Generation Co Ltd, China Shenhua Energy and Beijing Jingneng Thermal Power Co Ltd, had a total power generating capacity of about 2.7 gigawatts (GW). The first power plant closed in 2014, two other ones in 2015 and the last one will close in 2017.
Coal mine firesEdit
It is estimated that coal mine fires in China burn about 200 million kg of coal each year. Small illegal fires are frequent in the northern region of Shanxi. Local miners may use abandoned mines for shelter and intentionally set such fires. One study estimates that this translates into 360 million metric tons of carbon dioxide emissions per year, which is not included in the previous emissions figures.
North China's Inner Mongolia Autonomous Region has announced plans to extinguish fires in the region by 2012. Most of these fires were caused by bad mining practices combined with bad weather. 200 million yuan (29.3 million USD) has been budgeted to this effect.
Accidents and deathsEdit
In 2003, the death rate per million tons of coal mined in China was 130 times higher than in the United States, 250 times higher than in Australia (open cast mines) and 10 times higher than the Russian Federation (underground mines). However the safety figures in the major state owned coal enterprises were significantly better. Even so, in 2007 China produced one third of the world's coal but had four fifths of coal fatalities. It is also important to mention that China's coal mining industry resorts to forced labor according to a 2014 U.S. Department of Labor report on child labor and forced labor around the world, and that these workers are all the more exposed to the dangers of such activities.
While not directly attributable, many more deaths are resultant from dangerous emissions from coal plants. Chronic obstructive pulmonary disease (COPD), linked to exposure to fine particulates, SO2, and cigarette smoke among other factors, accounted for 26% of all deaths in China in 1988. A report by the World Bank in cooperation with the Chinese government found that about 750,000 people die prematurely in China each year from air pollution. Later, the government asked the researchers to soften the conclusions.
Many direct deaths happen in coal mining and processing. In 2007, 1,084 out of the 3,770 workers who died were from gas blasts. Small mines (comprising 90% of all mines) are known to have far higher death rates, and the government of China has banned new coal mines with a high gas danger and a capacity below 300,000 tons in an effort to reduce deaths a further 20% by 2010. The government has also vowed to close 4,000 small mines to improve industry safety. A total of 2,657,230 people worked in state owned coal mines at the end of 2006.
The government has been[when?] cracking down on unregulated mining operations, which account for almost 80 percent of the country's 16,000 mines. The closure of about 1,000 dangerous small mines last year[when?] helped to cut in half the average number of miners killed, to about six a day, in the first six months of this year, the government has said. Major gas explosions in coal mines remain a problem, though the number of accidents and deaths have gradually declined year by year, the chief of the State Administration of Work Safety, Luo Lin, told a national conference in September.
In the first nine months of 2009, China's coal mines had 11 major accidents with 303 deaths, with gas explosions the leading cause, according to the central government. Most accidents are blamed on failures to follow safety rules, including a lack of required ventilation or fire control equipment.
Unofficial estimates often estimate death tolls at twice the official number reported by the government. Since 1949 over 250,000 coal mining deaths have been recorded[when?]. However, since 2002, the death toll is gradually declining while the coal production is rapidly rising, doubling over this same period[when?].
|Year||Number of accidents||Deaths||Death rate per
million tons of coal
In October 2008, Greenpeace, World Wildlife Fund, and The Energy Foundation published The True Cost of Coal, a report that said that by-products of coal burning such as water pollution, air pollution and human costs such as mining deaths are costing China an additional 1.7 trillion yuan per year, or more than 7% of GDP. They recommended that China increase the price of coal by a tax of 23% to reflect the true costs of China's reliance on coal.
Other commentators have pointed out that China has been taking a role as a leader in making use of coal as an electricity source more clean and responsible. For instance, the country built new ultra-supercritical coal plants (~44% efficiency) before the United States. Chinas coal fleet has currently (2017) an average efficiency of 38.6% compared to the USA with 37.4%. . In 2009, China required companies building new plants to retire an old plant for every new one built.
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- Beijing Research Institute of Coal Chemistry
- List of coal research institutes in China
- Peter Fairley, Technology Review. Part I: China's Coal Future, January 5, 2007.
- Peter Fairley, Technology Review. Part II: China's Coal Future, January 5, 2007.
- China to enhance coal industry restructuring
- The True Cost of Coal: Greenpeace China Report on China's Coal Crisis
- China Coal Production - Location and Major Companies 2016